diff options
Diffstat (limited to 'drivers/spi/spi-zynq-qspi.c')
| -rw-r--r-- | drivers/spi/spi-zynq-qspi.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/spi/spi-zynq-qspi.c b/drivers/spi/spi-zynq-qspi.c index b1c56e9d7c94..9f53ea08adf7 100644 --- a/drivers/spi/spi-zynq-qspi.c +++ b/drivers/spi/spi-zynq-qspi.c @@ -680,10 +680,14 @@ static int zynq_qspi_probe(struct platform_device *pdev) ret = of_property_read_u32(np, "num-cs", &num_cs); - if (ret < 0) + if (ret < 0) { ctlr->num_chipselect = ZYNQ_QSPI_DEFAULT_NUM_CS; - else + } else if (num_cs > ZYNQ_QSPI_DEFAULT_NUM_CS) { + dev_err(&pdev->dev, "anything but CS0 is not yet supported\n"); + goto remove_master; + } else { ctlr->num_chipselect = num_cs; + } ctlr->mode_bits = SPI_RX_DUAL | SPI_RX_QUAD | SPI_TX_DUAL | SPI_TX_QUAD; |